This is not an issue with 12.04. I have experienced this consistently in 16.04, 18.04 and 20.04 I have nvidia, so the common theme seems to be nvidia (however, may not even be that).
I have tried in vain to find a fix for the last 4 years and have now learned to live with it (save frequently, etc). It sucks but not enough to go back to Windows Recently I plugged in a 3rd monitor to my desktop and the issue seems to have increased -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/980519 Title: Random log off in Ubuntu 12.04 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/980519/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs